Doorlatch



A. V. HENST Feb. 28, 1933.

DOORLATGH Filed June l5 1928 /N/mmn VANDER HEMI BY www ATTORNEY Patented Feb. 28, 1933 'UNITED STATES PATENT OFFICE.

ABRAJIAM VANDER HENST, OF GRAND RAPIDS,- MICHIGAN, ASSIGNOR T0 W. B'. JARVI C01., A CORPORATION 0F MICHIGAN A noonLAroH rI=`his invention relates to door latches and particularly to a type thereof that may be locked against withdrawal of the bolt, the principal object being theprovision of a new and' novel type thereof that is simple in construction and. economical to Vman ufacture.

Another object is to provide a door latch withgkey controlled means whereby the handle may be` rendered inoperative for withdrawal of the latch bolt when placed in looked position.

Another object is to provvide a door latch having a rotatable shaft for causing withdrawal of the latch bolt, a handle being provided V'with means for locking it to the shaft whereby it may be operated to .cause withdrawalof'the bolt, such means permitting thc-handle to be rotatably disconnected from the shaft whereby it maybe rotated withoutcausing movement ofthe bolt and thereby place the latch mechanism in locked position.

Another object is to provide a 'door latch provided with an exterior sleeve formed to increase the strength of the door handle.

Another object isl toproviide means for locking au escutcheon plate against rotation.

A further object` is to provide a new and novel means for preventing withdrawal of the door handle from a door.`

The above being among the objects of the present invention, the same consists in certain features of construction and combinations of parts tobe hereinafter describedwith reference to the accompanying drawing, and then claimed,having'the above and otherobjeots in'view.

In the accompanying drawing which illustrates suitable embodiments of the present invention, and'in which like numerals refer toilikeiparts throughout the-several different view:

Fig. 1 is ai partially broken sectional View taken through the axis of a locking door handle shown mounted upon a door in connection withthe door latch.

Fig. 2fis a.4 sectional'view taken on the line 2-2' ofFig. 1.

F ig.- Sisa sectional view taken on the line 3-3' ofFig. 1.

Fig. 4L is a face view'of the member employed for locking the handle against withrawal.

Fig. 5 is a sectional view of the door handle taken on the line 5*5 of Fig. 1.

Fig.` 6 is a face view of the door panel showing the opening therein through which the door handleprojects.

Fig. 7 is a viewsimilar to Fig. 1 showing amodification of the handle locking mechamsm. i

Fig. 8 isa sectional View taken on the line 8-8'of I4 1g.`7.

Fig. 9 is a sectional view taken on the lin-e 9 9 of rig. 7. i i

Fig. 10 is a yfragmentary sectional viewl showing a modified construction foi` holding the handle 1n place on thedoor.

In door latches for `automobiles provided i with means .for locking the same against operation from the outside, the construction has heretofore been, as far as I am aware, such that the latch handle when the'latch is locked, is locked against movement. The result is that thieves in attempting to open the door, oftenput suhcient force 0n the handleV in attempting to turn. it, to either break t-helocking means or elsefbreak off the" handle. In either case, the result is liable to be relatively disastrous to the Owner of the car.

By the use of the present invention I provide a means of eliminating such results and at thesame time provide means forlocking the doo-r latch against operation that is simple and economical to manufacture and efficient in operation. A

As illustrated in Fig. 1 the door lmay comprise an outer panel 15, and an inner panel 16 with one or more lugs 2l against which a roll-back 22 is adapted to bear, the bolt 19 being urged outwardly of the door, and the lugs 2l into contact with the roll-back 22,

by means ot' a coil spring such as 23 or that part ot toe sbatt- 24 beyond the outer panel l5 slightly enlarged at 26 and is circular in section. The handle proper comprises a hollow or shell-like stem portion which is rotatably rt .eived on the enlarged portion 25S and has its inner end turned over the same at to prevent withdrawal outwardly t'rom it. The outer end of the shell 27 is turned outwardly to provide a. pair of laterally extending iiango portions 29, as indicated in l? 5, each of which is recessed as at 30 and about and intoivhich the metal El is castto complete the handle. The outer end ot the cylindrical portion 26 terminates intermediate the ends of the shell 27 andits outer end face is slotted as at 82. Slidably received Within the. slot is a lock member provided with a notch or groove Sfr between its ends. The shell 2T is provided with an ,opening 35 which may be brought into registry with the lock member upon rotating the handle with the shell 27. A spring member 36 staked at its inner end in a groove 37 in the cylindrical end 26 bears against one end of the lock member 33 and constantly urges the lock memberl into the opening 35. llVhen the lock Imember 33 is in engagement with the opening 85, the cylindrical end 26 ot the shaft 24 is therefore locked to the shell' 27 of the handle for equal rotation therewith. Villien it is desired to locl;A the latch bolt against Withdrawal, means are provided for withdrawing the loci; member 323 out of engagement with the opening 35- so that upon rotation oi' the handle, no rotation of the shaft` 2-l occurs, and consequently no movement of the latch bolt may take place. rl`his means is as olio.vs:` rrkey controlled loch cvlindcr Btl is inserted in the shell 2T from the outer face ot the handle and pro vided with a pin 239 on its inner end which isl odset from the axis ot the loclrand is rotatable upon rotation of the ltey d0.

rthe pin 39 is received Within the groove Bel and when the key el() is rotated, the pin 39 is brought against the lower edge of the notch 34;, as viewed in l, and forces the loclring member downwardly against the pressure of the spring member 36 until the locking member 33 is retracted from the opening 35.' This unlocks the handle from the shaft so that the handle is tree to turn on the shaft When the key is Withdrawn with Ythe loch in this position, it Will bel apparent that the latch is in locked position inasmuch as rotation of the handle causes no movement of the latch bolt.

"fillien it is desired to place the handle in locked position, the key is turned to move the pin 39 upwardly away from the lower Wall oit' the notch 34, whereupon the spring 36 forces the loclrino member outwardly, and, il' the opening 55o is in alignment therewith, into the opening 35 so as to lock the handle and shaft together for equal rotation. Mis-alignment of the opening 35 and mem ber circularly oi" the handle will not prevent vvithdrauwil of the key, as suiiicient clearance is in-ovidedinthe notch 34 to permit the pin 1:39 to be moved to its extreme position. towards unlocked handle position, Without necessitating the member 33 being projected int-o the opening lf suchY a condition occurs, the spring 36 will snap the member int-o the opening 35 as soon as the handle is turned sufficiently to bring the member 38 into alignment with the opening A In order to prevent withdrawal 'of the loosing cylinder 38, a circumferential groove l is formed in the surface of the locking cylinder 38 and ay headed pinv l2 projecting through the shell 27 andinto the groove 4l is provided.

ln lock cylinders or .the type usually employed in connection with door handles, it is necessary to provide means for removing the key in either of tvvo rotated positions representing the locked and unlocked positions respectively of the barrel. It is therefore necesto provide one or more stops'for bringing the lock barrel to rest in either of its key withdrawing or inserting positions so Vthat the key may Vbe readily Withdrawn or inserted. In the present invention I employ the pin 42 and groove 4l for this purpose as Well as preventing Withdrawal of Vthe lock barrel. l." is accomplished in thefollov'- ing` manner: The groove Lll extends substantially halt-Way around the surface of the lock barrel and tliepin e2 is so positioned with relation thereto that when the barrel is rotated in either direction until stopped by the pin i contacting' against the end Wall olf the groove, the barrel is in key removing or inserting position. The type of lock cylinder or loin; barrel employed is immaterial, but that shoivn in the drawing is of that type having tun'iblcrs 53 Which project out past the surface of the barrel When the key-is Withdrawn. s lots 5% and 'formed in the shell Qi" permit the projection ot the tumblers 53 when the key is removed, the slots 54 and 55 (zo-acting with the tumbler-S when the key is Withdrawn. to lock the barrel against rotation nalative to the shell 27 in either locked or unlocked posi 'lonas the case may be.

The pin l2 is prevented from withdrawal :brewers i ashell, 43 whichv surroundsthe shell. 4 3 is preferably formed with a shoulder allI against whichy the eseuteheen plate4 50. is adapted to. bear when the mechanism is nnninted uponthe. door.l

The Aentire mechanism may be prenented from withdrawal from the` door in the -ioL lowing manner: A spider memberfshown in Fig. 4, having a plnrality et' outwardly extending bent arms i6 is slipped over the shaft 2flayith. the ends, of the'` arms, 4.6 ex,- tending through-the opening 25. The arms Lhne eachv provided with an` outwardly extending shouldez` 47 which bears againstthe inner, face of, the panel 1.5.A Whenthe parts are assembled in this positien, a Washer 5,8 isplaeedbaek of, the spider and the shaft is preferably stakedas at L81 so as to pre- Ventfwithdrawal of thewasher 58 andspider l5'therefreni. By this means anyattemptto pull the handle ontv oi the door iseiieetiizely preif'ented, the ends of the armst in projeeting through the opening 25 preventing spreading. et the arms 46,k as Will.readily be ap. iarent,`

' t is also preferableto p10videaeoilspring suchl as 49A between the. escntcheon platey 50 andthe spider'li` about the shell. 43 in `Order to constantly urge-.the shoulder 44 against the escutcheon plate and` thereby preyent rattling of, the parts should there be any looseness present.`

Thev eseutcheon plate4 50; is secured, to the panel liby screws 80. Villiene, hon'ever, the eseutcheon plateiseircnlar inplan View and isnotsecnred to thepanel 15, as indicated in Fig. l0,in orderto prevent possiblerotation of the. Same relativefto theA panel` l5 Iin ysueh ease,hthe opening: inthe panel 1, 5i s formed. as

indicated at 81 in Eig. 6, withnotehesfgin` whih thearms seat so l.aste leek the spider member: Llagainstretation. lhe eseuteheen plate SZisprovided withoneor m'Ql, arms on its innerlface which extendinwardly andl are received betweenthe kends of, two 4 ad.- jacent spider arms. 4l,6t hereby loekingthe elseuthen Plate. 8.2.asenetrotationE The arms 60 may beformed as shownor may be formed asanintegral part'of theesentcheen plate during the .stamping process. lllhere the, esenteheenl plate is net; seeured, to the panel l5 .as thus` described, lthespringflg)VA ,in ay be replaced,b yanotherE springsnehas S3 held anden eompressionbetaveen the .inner face v oi? manueel@ land a Washer Sg/ifelelgal dialneterfthatreplaces the Washer; 58, t0 `0911,5mi1t1r urge the mechanism inwardlraftlle penelsl;

In. Fie; i.v I; Shaw, Slightly modifiedA Conf struction In that figure-the Sheila. 2,4, is. net .Previded with an integral. end-Partien as: in

Fig. l1,bnt isinstead. proyided with a. Sepa# rate head mem-bel' i90 Whichlien-rotatably secured thereto any suitable means, that shown comprising indentations 61 i'orined-r in the edge of. the shaft 24 and intov which portions ofthe metal of the head 90 are staked to prevent Withdrawal of the shaft 2,4,` The constrnetion` 0i' the locking memb,e1finEig.`7 is modified t'renlthat sheyvnzin-'Fi-g. nl., In

Fig. V7 the. lookingmember is receivedv Within a gro'oxeiormed in the head 90.A flhe .loklng member- 63. 1n this cese 1S. elongated axially of the head 9() andis. ]iiV0tedin the groove as, at 6,4; It is furtherzpnoyided with a1 tongue which. is constantly, vurged into prejectedlpositien Within the slot 35, by a; eoil spring G6` heldL under eoi'npression `between theloeking. member GSandthe bottoni o fithe .groove-{SZ} A further; difference in. the eonstruction slio'wnin Fig.y 7 isthat instead.y Of

Yfoi-.niing.. the. pin on the lock. barrel38, a pin 68 is: formed on the. lockingy member- 63.V and the-innel er1-d7 Ofthelloel barrel. pnovided .2

with a` platelnieinher69"Whieh, infturn, is provided with an: eeeentrie opening .70..in which the .pin `fis reeeived. rLheplate memben) mayp be Seeuredfto thebaallljelf` 38 byV providing marginal legs 7l. Whie lunay be cashinto a the loekbarrel 3 8 during-fthe; proeess of' manufacture. Ehe 1 es ult, i n this ease, is exactly thesanie aslthat desenibedin eenneetionwithllig. 1.: Uponro'tatiollfof the key 4,0the lockv barrel 38fis eansedeto rotate carrying. with. it the. plate, 69. As f the plate GQrtates, theedges,'ofV theopening 7()V bears againstg the pin. 68;,on; theloehing iner'nberV andi forces, the tongue 6.5.- outof engagement Withtlie openingy 3,5, thusunlocking` thefhan.- dle. from. the, shaft 2li, and placing the latch in free handle.or'lockedposition,k Ltthepkey il-Dis. new turned back in the opposite direetion, the spring-66 will foricethe tongue 65 .gais

4eut against the shell` 27E nntil vthe..handleisf;

to thel shaft 24 in opposing relationshipwith s respectto the washer-7.3 and ancoilspring is held under. compression about the sleevef27 Withinthe Washers 73 and 74, thusdra-Wing the sleeve 67 Vfirmly raga-inst thereseuteheon plate 72 and preventing possible `rattling between the various parts beealiseieifpossihle loosenees that-mar be present-.between them.

Formal changes may b eanadefin:4 the spe- "jas ci-ic embodiment of the invention described Without departing from the spirit or substance of the br-oad invention, the scope of which kis commensurate with the appended claims.

' What I claim is: l. In combination, a rotatable shaft provided with an enlargement on one end thereof forming a shoulder, and a door handle provided With a hollovs7 stem rotatably received on saidenlargement and enveloping the same, the free end of said stem being turned over at said shoulder to prevent said shaft from being Withdrawn from said stem in that direction.

' 2. In combination, a rotatable shaft, a handle provided with a stem rotatable on said shaft, a sleeve enveloping said stem, a shoulder formed on ysaid sleeve intermediate its ends, an escutcheon plate surrounding said sleeve, and means urging said shoulder against said escutcheon plate. j

3. In combination with a door panel provided withan opening therein, a shaft projecting through said opening, means'limiting movement of said shaft inwardly of said panel, a member secured to said shaft inwardly of said panel against movement in one direction thereon, said member provided with fingers proj ecting through said opening, and shoulders on said lingers bearing against the inner face of said panel. i

4. In combination with a door panelprovided with an opening therein having a notch in the side Walls thereof, a shaft projecting through said opening, means limiting` movement of said shaft inwardly yof said panel, a member rotatably received on said shaftv inwardly of said panel and prevented from Vmovement inwardly of saidpp'an'el thereon,

lingers on said member extending through said opening and one of which is received in said notch, and shoulders on said lingers bearing against the inner face of said panel. v

5. In combination With'a door panel provided With anopening therein having a notch in the vsidewalls thereof, a door handle vprovided with `a shaft extending through said opening, an escutcheonplat-e on the exterior of said panel surrounding said handle for limiting movement of said shaft inwardly of said panel, a member rotatably mounted on said shaft inwardly of said panel and secured against inward movement on said shaft, portions of said member extending through said opening, a shoulder on said member bearing f against the inner face of said panel,`an arm on said member engaging said notch for preventing rotation of said member relative to said panel and a linger on said escutcheon plate engaging said member to thereby lock said escutcheon plate against rotation relative to said member.

G. In combination, a. door handle provided with a hollow stem inwardly flanged at its nece-,se

inner'end, a shaft having an enlarged end rotatably receivedin said stem and a smaller end projecting through the inner end of said stem, a shoulder formed between said enlarged end and said smaller end and abutting against said inwardly flanged end of said stem, a loch barrel'received in the open end `of said stem, means extending through said stem and engaging said lock barrel for preventing Withdraival thereof, and a sleeve surrounding said stem and concealing said means and maintaining said means in operative position.

7. In combination, a door handle provided stem and engaging said lock barrel for Vpreventing Withdrawal thereof, a sleeve surround ing said stem and concealing said means and maintaining said means in :operative position, and means controlled by said lock barrelv for releasably locking said shaft to said stem.

8. In combination, a handle having a' hollow stem opening outwardly through said handle, the inner end of said stem being inwardly bent to form a radial shoulder, a headed shaft rotatably received in said stem and projecting axially from vtha inner Vend thereof with its head. received against said shoulder to limit its axial movement inivard ly of said stem, a lock barrel received in the outer end of said stem, means projecting through said stem'and engaging said lock barrel for preveirting' Withdrawal thereof, said handle being provided With a recess Aon its inner side around said stem, a sleeve surrounding said stem and received in said recess, said sleeve preventing.; Withdrawal of said means, an escutcheon plate surrounding said stem, and spring means constantly urging said plate against said sleeve whereby to urge said sleeve against said handle.

9. In combination, a handle having a hollow stem, a rotatable shaft received Within said stem and projecting aXi'a-lly therefrom in one direction, means for limiting said shaft against axial movement relative to said sleeve in one direction, a loci: barrel 'received in said stem and limiting said shaft againstmovement relative to said stem in the opposite direction, a diametrical slot in said shaft Within said stem, an axially extending slot in said shaft connecting With said diametrical slot, an aperture in a sine Wall of said stem, a locking member slidable in said diametrical slot, an elongated'spring secured within said axially extending slot and constantly urging iso said locking member towards engagement with said aperture, and means co-operating between said lock barrel and said locking member for controlling the position of said lockin member in said diametrical slot.

10. n combination, a handle having a stem, an escutcheon plate rotatably mounted on said stem, a sleeve surrounding said stem between said handle and said escutcheon plate, and spring means acting to clamp said sleeve axially between said handle and said escutcheon plate.

11. In a device of the type described, a handle having a tubular stem provided with a lateral aperture, a shaft rotatably received in said stem, a locking member non-rotatable relative to said shaft but movable transversely thereof, a spring constantly urging said locking member in one direction whereby to project it into said aperture when in alignment therewith, said locking member having a notch therein, a lock barrel carried by said stem, and a. pin on said barrel received in said notch and adapted to engage a wall thereof to move said locking` member in opposition to said spring, said notch having sufficient clearance to permit said lock barrel to move said pin to full unlocked handle position prior to projection of said locking member into said aperture.

12. In a device of the type described, a handle having a tubular stem provided with a lateral aperture, a shaft rotatably received in said stem, a locking member non-rotatable relative to said shaft but movable transversely thereof, springmeans constantly urging said locking member in one direction whereby to project it into said aperture when in alignment therewith, a lock barrel member carried by said stem, one of said members being provided with a notch therein and the other of said members being provided with a pin, said pin and the walls of said notch being co-operable upon rotation of said lock barrel member to move said locking member in opposition to said spring, and said pin having suthcient clearance in said notch to permit said lock barrel to be moved to full unlocked handle position prior to projection of said locking member into said aperture.

13. A control handle for latches and the like having, in combination with a rotatable spindle, a sleeve open at one end and having a flange defining an opening in the other end, a. barrel lock rotatably mounted in said open end and having key controlled means for securing the lock against rotation within Said sleeve, a head rigid with said spindle and disposed within said sleeve between said lock and said flange, and a slide arranged for movement transversely of said sleeve and head in the rotation of said lock whereby to connect or disconnect said sleeve and head for relative rotation. p

14. A control handle for latches and the like having, in combination with a rotatableI spindle, a cylindrical sleeve having an inturned flange at one end, a barrel lock adapt ed to be inserted into the open end of said sleeve whereby to close such end, a head formed on one end of said spindle and adapted to be journaled in said sleeve, the other end of said spindle being constructed to be inserted through the open end of said sleeve and to pass through the opening defined by said flange whereby to bring said head into abutment with said flange prior to the insertion of said lock, and a locking member' mounted for movement transversely of said sleeve and preventing axial movement of said head away from said flange, and means actuated by rotation of said barrellock and controlling the position of said member to prevent relative angular movement between said Vsleeve and said head or to free said sleeve for rotation about the head. 

